252040-00-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 252040-00-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,2,0,4 and 0 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 252040-00:
(8*2)+(7*5)+(6*2)+(5*0)+(4*4)+(3*0)+(2*0)+(1*0)=79
79 % 10 = 9
So 252040-00-9 is a valid CAS Registry Number.
252040-00-9Relevant academic research and scientific papers
Asymmetric Synthesis of (3S)-2,3,4,5-Tetrahydropyridazine-3-carboxylic Acid
Aspinall, Ian H.,Cowley, Phillip M.,Mitchell, Glynn,Stoodley, Richard J.
, p. 1179 - 1180 (2007/10/02)
The title compound 1a is prepared by a two-step sequence from the cycloadduct 5d, derived from di(tert-butyl) azodicarboxylate and the diene 4b by a hetero Diels-Alder reaction.
